Feed mechanism for saw-mill carriages



(No Model.)

G. M. PELTON.

FEED MECHANISM FOR SAW MILL GARRIAGES.

Patented Oct. 19, 1886.

fitter-nay UNITEB STATES PATENT @FFICE.

GEORGE M. PELTON, OF BELMONT, NE\V YORK.

FEED MECHANISM FOR Application tiled May 17, 1886.

T0 aZZ whom it may concern:

Be it known that l, GEORGE ill. PEt/roN, a citizen of the United States, residing at Belmont, in the county of Allegany and State of Xew York, have invented certain new and useful Improvements in a Steam-Feed for Saw- Mill Carriages, of which the following is a specification, reference being had therein to the accompanying drawings, in which Figure 1 representsaside elevation of a sawmill carriage operated by my improvement; Fig. 2, a plan of the cylinder and devices for operating the rope, and Fig. 3 a perspective detail of a modification.

This improvement relates to that class of steam feed apparatus in which is employed a rope or ropes passing over a sheave orsheaves to which a reciprocating motion is given by means of the steam acting onthe piston in the cylinder; and the invention consists in the peculiar construction, arrangement, and combinations of parts hereinafter more particularly described, and then pointed out in the claims.

Referring now to the details of the drawings, which represent the preferable forms of my improvement, Areprescnts the cylinder mounted on a suitable bed plate or frame, B, and provided with a piston, 0, (represented in dotted lines,) which piston has preferably two piston-rods, D, whose outer ends carry an axle or pin, E, on which revolves a double grooved sheave, F, ortwo single-grooved ones, as may be preferred. The pin E and pistonrods thus form a frame in which the sheave or sheaves F run. To the piston-rods are coir nected two yokes, G G, to each of which is fastened one end of a rope, H, each half of which passes over one of two sheaves, I I, then returns to the central sheave or sheaves. D, and around it to one of the end sheaves, J J, and from thence to the log-carriage K, to which it is fastened in any convenient manner.

By this construction the carriage has treble the motion of the piston, and the various devices heretofore employedsuch as racks and pinions, or equivalent devicesfor increasing the travel of the carriage beyond that of the piston is dispensed with. Even guides for the cross-head may be omitted, although they may be used, if desired; but I do not think them necessary.

SAVV-MILL CARRIAGES.

forming part of Letters Patent No. 351,202, dated October 19, 1886.

Serial No. 202,131). (No model.)

In some cases, as shown in Fig. 3, I may carry the ropes around other sheaves,F F, on each side of the sheave F, and fasten the ends to the frame B, by which means the motion of the carriage in relation to the motion of the piston may be further increased.

I have shown a single rope attached to the center of the carriage in Fi 1; but it is evident that I may employ two ropes attached to the opposite ends of the carriage, and having their other ends connected with the yokes, or to a piston-rod, or to the frame B, as the case may be, and in all the following claims, except the first, where I use the word rope, I desire to be understood as meaning either one rope running in opposite directions, as shown in full lines in Fig. 1, or two ropes attached to the ends of the carriage and running in opposite directions.

It is evident that in some kinds of machinery where a long carriage is employed the sheaves I I may be dispensed with by connecting the ropes with hangers depending from the extremities of the carriage, as shown in dotted lines in Fig. 1.

\Vhat I claim as new is 1. The combination, with a saw-mill carriage, of a rope connected therewith and running from one end thereof and over a recip rocating sheave, then back over a sheave mounted in stationary bearings, and then return toward and moving with the reciprocating sheave, and having its end firmly fastened to some part of the apparatus, substantially as described.

2. The combination, with a carriage, of a rope connected thereto and running in opposite directions therefrom, the opposite'halves of which rope are arranged to pass over a reci procatin g sheave in opposite directions,then around sheaves running in stationary bearings, and then return again toward and moving with the reciprocating sheave, and having their ends firmly fastened to some part of the apparatus, substantially as described.

3. The combination, with a carriage, of a rope connected therewith, the opposite halves of which are arranged to pass over the reciprocating sheaves in opposite directions, then around sheaves mounted in fixed bearings, I and then back again toward the reciprocating sheave, and connected with the frame or bearings thereof, substantially as described.

4. The combination, with a carriage, of a cylinder and piston, a sheave connected with and reciprocated by the motion of the piston, two sheaves mounted in stationary hearings on opposite sides of the reciprocating sheave, and a rope connected to the carriage whose opposite halves are first passed around the reciprocating sheave in opposite directions, then around the sheaves mounted in stationary bearings, and their ends connected with the frame of the reciprocating sheave, substantiat 1y as described.

.5. The combination, with the carriage K, a cylinder, A, piston 0, having two piston-rods, D, forming a frame for a reciprocating sheave, F, revolving on a pin or axle, E, mounted in i the ends of the piston-rods, and sheavesI I, mounted in stationary hearings on opposite sides of the reciprocating sheave, and one of them running between the piston-rods, of a rope, H, connected to the carriage, and having its opposite ends passed in contrary directions around the sheave F, then around the sheaves I I, and then toward and connected with the frame of the reciprocating sheave, substantially as described.

In testimony whereof I affiX my signature,in

presence of two witnesses, this 8th day of May, 30

GEORGE. M. PELTON.

\Vi tnesses:

E. W. CHAMBERLAIN, ELBA REYNOLDS. 

